diff --git a/TR-9_KBD.ioc b/TR-9_KBD.ioc
index 494d5d5..c80a0d1 100644
--- a/TR-9_KBD.ioc
+++ b/TR-9_KBD.ioc
@@ -205,7 +205,7 @@ SH.GPXTI8.ConfNb=1
 SH.GPXTI9.0=GPIO_EXTI9
 SH.GPXTI9.ConfNb=1
 TIM2.IPParameters=Prescaler,Period,TIM_MasterOutputTrigger
-TIM2.Period=31999
+TIM2.Period=15999
 TIM2.Prescaler=0
 TIM2.TIM_MasterOutputTrigger=TIM_TRGO_UPDATE
 USART2.BaudRate=9600